The International Classification of Functioning, Disability and Health widens the understanding of the individual by considering contextual factors for health. Regarding the health of women, vulvovaginal symptoms (e.g., itching, burning, pain, irritation, dryness, and vaginal odor) need consideration.
ObjectiveTo verify the prevalence of vulvovaginal symptoms, their association with contextual factors, and evaluate their impact on the emotional well-being, quality of life, and sexual function of Brazilian women.
MethodsThis cross-sectional study was conducted from October 2021 to August 2022 using Brazilian women aged 18 or older. Health and sociodemographic data were collected, and the women were divided into two groups according to the Vulvovaginal Symptoms Questionnaire: with and without vulvovaginal symptoms. The association between contextual factors and vulvovaginal symptoms was verified using logistic regression.
ResultsThe study included 313 women (34 ± 11.5 years), physically active (71%), non-smokers (9%), and employed (72%). Of those, 227 (72.5%) presented vulvovaginal symptoms. Low educational level and no pregnancy were associated with vulvovaginal symptoms. The most prevalent symptoms were vaginal discharge (63.4%) and itching (54.6%).
ConclusionThe results indicated that vulvovaginal symptoms are prevalent in Brazilian women. Thus, developing effective care and disseminating knowledge about vulvovaginal symptoms, causes, and treatment, are important to improve health care in Brazilian women.
Vulvovaginal symptoms include itching, burning, pain, irritation, dryness, and vaginal odor that can adversely affect women's health. These symptoms may be caused by infections, dermatological and/or hormonal changes, as well as lifestyle habits such as wearing non-breathable clothing. In terms of their consequences, these symptoms can negatively impact women's emotional well-being, quality of life, and sexual function. Their presence can result in changes in social participation and self-confidence, among other aspects.1-3
The prevalence of these symptoms was found to be 51.1% in a study conducted with post-menopausal American women. An impact due to the presence of these symptoms was observed across the other evaluation subscales of the instrument when there was a positive response to the presence of at least one symptom.4 However, data regarding prevalence in Brazilian women and in a younger population remain scarce. These symptoms could be assessed using the Vulvovaginal Symptoms Questionnaire (VSQ) which consists of 21 items divided into four scales: symptoms, emotions, life impact, and sexual impact.1-3
When assessing individuals' health conditions, the International Classification of Functioning, Disability, and Health indicates an interaction between aspects of body structure and function, activity, participation, and contextual factors.4 Contextual factors can be environmental, considering the place of residence (time, territory, and societal interference), and social behavior, which encompasses societal norms and interpersonal relationships. Additionally, personal factors include individual aspects such as age, educational level, lifestyle, and occupation.4-6
These factors can either protect or pose risks to an individual's health, and this applies to women's health as well. Older age, lower educational level, lower socioeconomic status, working outside the home, and having more than two children are predictive factors for health issues in women.7 These factors can affect conditions like urinary incontinence (UI), sexual dysfunction, and menopause, and can influence health habits during pregnancy.7-11
Although studies have examined the effects of these factors on vulvovaginal symptoms, the relationship between contextual factors and vulvovaginal symptoms has not yet been adequately explored in the scientific literature. Therefore, this study aimed to verify the prevalence of vulvovaginal symptoms, their association with contextual factors, and evaluate their impact on the emotional well-being, quality of life, and sexual function of Brazilian women. This information could contribute to structuring prevention and symptom reduction measures, and understanding the role of contextual factors in vulvovaginal symptoms.
MethodsStudy designThis quantitative cross-sectional study was conducted online from October 2021 to August 2022 and was approved by the Research Ethics Committee of the Federal University of São Carlos, located in São Carlos, São Paulo, Brazil, under CAAE: 27822120.7.0000.5505. All participants received an informed consent form in which they recorded their agreement to participate in the study. The study was reported according to the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines.12
ParticipantsThe participants were recruited online via sponsored and unsponsored posts on the research laboratory's social media profiles on Facebook and Instagram, and through WhatsApp groups where the researchers were members for dissemination purposes. Subsequently, participants were categorized into two groups: those with and without vulvovaginal symptoms. This categorization was based on their responses to items in the first subscale of symptoms, covering questions 1 to 7, where a score of 0 indicated 'no' and 1 indicated 'yes.' The presence of vulvovaginal symptoms was determined by at least one affirmative response.
According to Field,13 a sample size of 10 to 15 participants per variable is recommended for inclusion in a regression model.13 Therefore, the sample size for this study should have ranged between 200 and 300 participants, determined based on the number of variables present in the Vulvovaginal Symptoms Questionnaire (VSQ-Br). Considering that the number of participants reached (313), this reflects a medium to high effect size and 80% power in conducting logistic regression analysis.
InstrumentsSociodemographic, gynecological-obstetric and health data formThis form was prepared by the researchers, and included personal data such as age, socioeconomic data evaluating occupation (1. Working and 2. Not working) and demographic data such as educational level (1. Middle and high school and 2. Higher education) and marital status (1. Single and 2. Married/stable union). Regarding gynecological-obstetric data, participants were asked about the use of contraceptive methods, gynecological surgery, sexual intercourse in the last 4 weeks, menopause, and urinary incontinence, with yes or no answers to each of the questions. For pregnancies, participants selected “none” or “one or more”. Finally, for health in general, the practice of physical activity and smoking were evaluated based on the participants' reports, indicating yes or no to these questions.
VSQ-BrThe translated and validated Brazilian version of the VSQ was used to assess vulvovaginal symptoms.3 This self-administered questionnaire has 21 yes (1) or no (0) questions divided into four scales: symptoms, emotions, life impact, and sexual impact. Questions one to seven are related to the symptoms scale, in which a single affirmative answer defines vulvovaginal symptoms.1-3 The score ranges from 0 to 16 for sexually inactive women and 0 to 20 for sexually active ones. Question 17 differentiates sexually active from inactive women and is not included in the score. High scores indicate more emotional, quality of life, and sexual impact of vulvovaginal symptoms on women.
Data analysisTo analyze the results, the normality of the data was checked using the Q-Q plot. Mean, standard deviation, and absolute and relative frequencies were calculated, and the variables are specified in Table 1.
Measurement, classification, and analysis of variables.
VSQ-Br, Vulvovaginal Symptoms Questionnaire Brazilian Portuguese version.
Sociodemographic data from groups were compared using the t-test for independent samples (continuous variables) or the chi-square test (categorical variables).
The association between contextual factors and vulvovaginal symptoms was first assessed using the chi-square test. The variables that were associated with each other with p < 0.20 were included in the logistic regression model, so that variables that could be potentially significant were not excluded before being evaluated14 using the stepwise forward method. The Statistical Package for the Social Sciences (SPSS, version 22.0) software was used to determine odds ratio (OR) 95% confidence interval (CI), and R2.
ResultsTable 2 presents the sample characteristics and bivariate analysis between contextual factors and vulvovaginal symptoms of 313 participants. There were no exclusions based on the criteria of this study. The prevalence of vulvovaginal symptoms in young women was 72.5% (227). The contextual factors of age (p < 0.04), education (p < 0.02), urinary incontinence (p < 0.20), and number of pregnancies (p < 0.03) were included in the multivariate analysis.
Sample characteristics and associations between contextual factors and vulvovaginal symptoms.
Characteristics | Women with vulvovaginal symptoms 227 (72.5%) | χ2 | Women without vulvovaginal symptoms 86 (27.5%) | P | Total 313 |
---|---|---|---|---|---|
Mean age (SD) | 30.8 (± 10.5) | n/a | 33.4 (± 10.0) | 0.04 | 34.0 (± 11.5) |
Occupation | 0.48 | 0.49 | |||
Not working | 65 (29%) | 22 (26%) | 87 (28%) | ||
Working | 162 (71%) | 64 (74%) | 226 (72%) | ||
Educational level | 5.15 | 0.02 | |||
Middle and high school | 66 (29%) | 15 (17%) | 81 (26%) | ||
Higher education | 161 (71%) | 71 (83%) | 232 (74%) | ||
Marital status | 0.65 | 0.42 | |||
Single | 137 (60%) | 47 (55%) | 184 (59%) | ||
Married/stable union | 90 (40%) | 39 (45%) | 129 (41%) | ||
Physical activity | 163 (72%) | 0.67 | 58 (67%) | 0.41 | 221 (71%) |
Smoking | 20 (9%) | 0.03 | 7 (8%) | 0.87 | 27 (9%) |
Urinary incontinence | 44 (19%) | 1.77 | 11 (13%) | 0.18 | 55 (18%) |
Contraceptive methods | 165 (73%) | 0.33 | 60 (70%) | 0.57 | 225 (72%) |
Menopause | 13 (6%) | 1.34 | 8 (9%) | 0.25 | 21 (7%) |
Gynecological surgery | 26 (11%) | 1.39 | 14 (16%) | 0.24 | 40 (13%) |
Pregnancies | 4.76 | 0.03 | |||
None | 158 (70%) | 49 (57%) | 207 (66%) | ||
One or more | 69 (30%) | 37 (43%) | 106 (34%) | ||
Sexual intercourse in the last four weeks | 179 (79%) | 0.05 | 69 (80%) | 0.82 | 248 (79%) |
n/a, not applicable; SD, standard deviation;.
The logistic regression model (R2 = 0.032) showed that women with middle or high school levels education and no pregnancy presented a greater association of vulvovaginal symptoms than women with higher educational levels and one or more pregnancies (Table 3).
Logistic regression analysis.
β, coefficient (B); CI, confidence interval; Exp (β), confidence interval for Exp (β); OR, odds ratio; SE, standard error; Z (Wald), wald statistics.
Vaginal discharge (63.4%) and itching (54.6%) were the most prevalent symptoms (Table 4).
Prevalence of vulvovaginal symptoms according to VSQ-Br.
VSQ-Br, Vulvovaginal Symptoms Questionnaire Brazilian Portuguese version.
The mean score of VSQ-Br was 5.21 (± 4.5) points. The mean scores of the scales symptoms, emotions, life impact, and sexual impact were 2.6 (± 10.4), 4.0 (± 1.0), 0.6 (± 1.1), and 1.1 (± 1.4), respectively. The sexual impact was analyzed only in sexually active women (179 participants).
DiscussionThe results showed that the prevalence of symptoms among young women was 72.5% (227), low educational levels and no pregnancy were contextual factors associated with vulvovaginal symptoms. Sociodemographic, gynecologic, and obstetric data were similar in both groups. However, participants with vulvovaginal symptoms were older than those without symptoms. The majority of participants reported being physically active, non-smokers, and using contraceptive methods.
The prevalence of vulvovaginal symptoms was high (72.5%) in the participants of this study, and higher than in older populations (51.1%) where investigations of these symptoms are more frequent.2 The instrument used to assess symptoms is an appropriate tool that should be used both in clinical practice and scientific research in Brazil.1-3 However, this assessment may be neglected and forgotten by women due to their lack of knowledge about causes and consequences of vulvovaginal symptoms, as well as by healthcare professionals during patient care.15,16 Given this, the high prevalence of vulvovaginal symptoms in the participants of this study highlights the importance of considering the presence and impacts of symptoms throughout the female life cycle.
Regarding the impact of symptoms assessed by the instrument's subscales, there was no information in the literature about a cutoff point to determine how low or high it would be. In the cross-cultural adaptation and validation study of the instrument, the means found in the emotional impact and quality of life subscale were 0.9 (±1.3) and 0.4 (±0.9), respectively, with no data relating to sexual impact.3 Comparing our findings with the participants evaluated by the instrument adaptation study, we observed that in our study there was a greater reported impact of vulvovaginal symptoms on the participants' lives.
The association between low educational level and prevalent vulvovaginal symptoms may be due to impaired access to health services, low socioeconomic status, and neglect of symptoms. Studies in the United States of America17 and Iran18 analyzing sociodemographic factors in women pre-, peri‑, and post-menopause identified that high educational level, employment, and monthly income influenced the search for health care. Despite the different participant profiles in these studies, we found similar results: vulvovaginal symptoms are less prevalent in women with high education levels, probably due to more search for health care and prevention.
The number of pregnancies was also associated with the prevalence of vulvovaginal symptoms. Health monitoring is important at all stages of the female life cycle, but may be more frequent during pregnancy. In Brazil, health services still face barriers of geographic accessibility, professional availability, and understanding of health care needs.18 These factors are unrelated to female biology, but result in neglect of gynecological health care. Thus, a possible relationship between the findings of this study and data from the literature is that there is a lower frequency than necessary throughout women's lives to health services, with gynecological care only occurring in the presence or worsening of symptoms.19-22 Although the female vital cycle requires routine monitoring, this is uncommon in the general population, being more frequent during the gestational period. Therefore, monitoring during the gestational period can be a source of information about self-care and health care for these women.
Regarding age, participants who presented vulvovaginal symptoms were mainly younger, highlighting the importance of evaluating these symptoms in this population, regardless of their health status. Regardless of life stage, women experience physiological and social changes (e.g., work and family relationships) that affect self-care.23
According to the results of this study, it is relevant to consider the biological aspect (prevalence of symptoms), psychological factors (emotional impact, quality of life, and impact on sexual function), and social aspects (association of contextual factors with the presence of symptoms) in women's health. Based on this knowledge about these data, it becomes possible to have an impact on clinical practice by providing more assertive and meaningful health care to the population. This involves considering their health complaints and specificities, such as personal characteristics and impacts on their social participation, a possible relationship with pelvic floor dysfunctions, among others.
Women's Health physical therapists must perform the physical therapy diagnosis of movement changes related to vulvovaginal symptoms, and there are classification systems for physical therapy diagnoses including the genital system.24 Future studies should investigate not only the impact of vulvovaginal symptoms on women's functionality, but also the specific physical therapy diagnosis in this area that can guide physical therapy treatments.
In this sense, we would like to highlight that, although our sample size corresponds to the one calculated, a larger sample with greater sociocultural and health variability would increase the validity of the study. Furthermore, we recognize that the cross-sectional study design does not allow for the establishing of causality between the variables, and it is important to consider other types of studies to complement our findings. It is also important to note that online data collection may have hindered the participation of elderly women and women in situations of socioeconomic vulnerability. Some variables used, such as physical activity and smoking status, were collected only based on the participants' reports; thus, it is important to perform studies with structured questionnaires. Finally, due to the scarcity of studies on the presence of vulvovaginal symptoms and their relationship with contextual factors, inferences about these aspects become limited.
ConclusionThis study showed a high prevalence of vulvovaginal symptoms in young Brazilian women, and the predominant symptoms were vaginal discharge and itching. Regarding contextual factors, low education and lack of pregnancy were associated with the presence of vulvovaginal symptoms, indicating that these factors can affect female health. Therefore, considering vulvovaginal symptoms in young women and associating them with individual women's characteristics based on contextual factors (such as socioeconomic status and educational level) is important for effective health care delivery.
FundingThis work was financed by the São Paulo Research Foundation (FAPESP, grant 318, no. 2019/14666-7).
We thank the participants of this study who allowed study development, the São Paulo Research Foundation (FAPESP) for the funding, the University Hospital of UFSCar managed by the Brazilian Company of Hospital Services (EBSERH) for authorizing data collection, and the Federal University of São Carlos (UFSCar) for the support